The Model 471 is a fully digital kWh meter tester, with an in built 30 Amp phantom load ability. A digital signal processor performs all of the energy calculations and measurements and a separate processor board facilitates parameter entry and results display.
SUPPLY VOLTAGE RANGE: 220V to 270V, 50Hz/ 60Hz
CURRENT INJECTION: 30A, 20A, 15A, 10A, 5A, 2A, 1.5A, 1A, 0.5A
The currents can be injected at Power Factors of: 1.0, 0.86 lag or 0.5 lag, selectable on the LCD screen.
Energy measurement accuracy is 0.05% over the following ranges:
220V-270V. 0.5A-30A. 1.0PF to 0.86PF lag. 48Hz to 52Hz, or 58Hz to 62Hz.
Energy measurement accuracy is 0.075% over the above ranges at 0.86PF lag to 0.5PF lag.
The voltage and current measurement as shown on the LCD screen is accurate to 1%.
The frequency is accurate to 0.1Hz
Phase angle to 1 deg.
Unit size is 400mm wide X 340mm deep X 200mm high, and weight 10kg.
Recommended operating temperature range is 0deg C to 40deg C.
Up to 500 Meter test records can be stored.
Records can be downloaded to a PC using the USB port on the front panel.